Occasional means happening sometimes, but not regularly or often. I've had occasional mild headaches all my life Esther used to visit him for the occasional days and weekends. + occasionally oc·ca·sion·al·ly He still misbehaves occasionally. happening sometimes but not often or regularly
Of or pertaining to an occasion or to occasions; occuring at times, but not constant, regular, or systematic; made or happening as opportunity requires or admits; casual; incidental; as, occasional remarks, or efforts